Centers for Disease Control and prevention (U.S.) & International Clearinghouse for Birth Defects Monitoring System. Birth defects surveillance: A manual for programme managers. World Health Organization.
Chicago Style (17th ed.) CitationCenters for Disease Control and prevention (U.S.) and International Clearinghouse for Birth Defects Monitoring System. Birth Defects Surveillance: A Manual for Programme Managers. Geneva: World Health Organization.
MLA (8th ed.) CitationCenters for Disease Control and prevention (U.S.) and International Clearinghouse for Birth Defects Monitoring System. Birth Defects Surveillance: A Manual for Programme Managers. World Health Organization.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.